ENTRY 22933 20130203 22342293300000001 SUBENT 22933001 20130203 22342293300100001 BIB 8 19 2293300100002 TITLE Cross section of thermal-neutron capture reaction 2293300100003 by 99Tc 2293300100004 AUTHOR (K.Furutaka, H.Harada, S.Nakamura, T.Katoh, T.Fujii, 2293300100005 H.Yamana, S.Raman) 2293300100006 INSTITUTE (2JPNJNC) Furutaka, Harada, Nakamura, Kato 2293300100007 (2JPNKTO) Fujii, Yamana 2293300100008 (1USAORL) Raman 2293300100009 (2JPNYOK) Experimental site. 2293300100010 REFERENCE (J,JNRS,6,(3),283,2005) Main reference,data are given 2293300100011 DECAY-DATA (43-TC-100,15.5SEC,DG,540.,.0700, 2293300100012 DG,591.,.0574) 2293300100013 .The half-life was determined as an average of four 2293300100014 values to be 15.5 +- 0.1 sec. 2293300100015 CORRECTION .The data were corrected for sum-coincidence loss, 2293300100016 pile-up and self-absorption. 2293300100017 ADD-RES (DECAY) Decay constants are obtained in this work 2293300100018 HISTORY (20061126C) S.M. 2293300100019 (20130203A) SD: Subent 2 deleted (no reaction data 2293300100020 given, only decay constant). 2293300100021 ENDBIB 19 0 2293300100022 NOCOMMON 0 0 2293300100023 ENDSUBENT 22 0 2293300199999 NOSUBENT 22933002 20130203 22342293300200001 SUBENT 22933003 20061127 21812293300300001 BIB 13 33 2293300300002 REACTION (43-TC-99(N,G)43-TC-100,,SIG) 2293300300003 FACILITY (REAC,2JPNYOK) THE TRIGA MARK II reactor at Rikkyo 2293300300004 University. 2293300300005 INC-SOURCE (REAC) 2293300300006 INC-SPECT .Neutron spectrum is similar to maxwellian. Thermal 2293300300007 neutron flux at the irradiation position is 5.0E+11 2293300300008 n/cm2/s and an epithermal index in the Westcott con- 2293300300009 vention is 0.033. 2293300300010 METHOD (ACTIV) Irradiation time 2 min. irradiations were per- 2293300300011 formed with and without cadmium shielding, cooling 2293300300012 time from end of irradiation to start of activity 2293300300013 measurement was typically 40 min. 2293300300014 (SITA) Samples and monitor irradiated separately 2293300300015 ANALYSIS .Data obtained by Ru-100 excited states activity 2293300300016 measurement for gamma-rays 540 and 590 keV using 2293300300017 their abundances detrmined in the SUBENR 22933002 2293300300018 DETECTOR (HPGE) The activities were measured with a HPGE detec-2293300300019 tor, having a relative efficiency of 90 percent and a 2293300300020 resolution of 2.1 keV FWHM at 1.33 MeV. The distance 2293300300021 from the centre of the sample to the front end of the 2293300300022 detector was 100 mm. 2293300300023 PART-DET (DG) 2293300300024 MONITOR ((MONIT1)27-CO-59(N,G)27-CO-60-G,,SIG,,MXW) 2293300300025 ((MONIT2)79-AU-197(N,G)79-AU-198-G,,SIG,,MXW) 2293300300026 DECAY-MON (27-CO-60-G,5.271YR,DG,1173.,1.0, 2293300300027 DG,1332.,1.0) Taken from Ref.2 2293300300028 (79-AU-198-G,2.696D,DG,412.,.955) Taken from Ref.2 2293300300029 SAMPLE .Four samples of Tc-99 were of ammonium pertechnetate. 2293300300030 The specific activity was aprx 390 kBq. Number of 2293300300031 Tc-99 atom were determined by B- counting. 2293300300032 ERR-ANALYS (DATA-ERR) The error given includes statistical and 2293300300033 systematic errors. 2293300300034 STATUS .From the text of main reference 2293300300035 ENDBIB 33 0 2293300300036 NOCOMMON 0 0 2293300300037 DATA 5 1 2293300300038 EN DATA DATA-ERR MONIT1 MONIT2 2293300300039 EV B B B B 2293300300040 0.0253 22.8 1.8 3.7200E+01 9.8800E+01 2293300300041 ENDDATA 3 0 2293300300042 ENDSUBENT 41 0 2293300399999 ENDENTRY 3 0 2293399999999